Greek Prime Minister Alexis Tsipras delivers a speech at an anti-austerity rally in Syntagma Square in Athens, Greece, July 3, 2015. Tsipras, elected in January on a promise to end six years of austerity, extolled a packed Syntagma square in central Athens to spurn the tough terms of an aid deal offered by international creditors to keep the country afloat. REUTERS/Yannis Behrakis TPX IMAGES OF THE DAY

Greek Prime Minister Alexis Tsipras delivers a speech at an anti-austerity rally in Syntagma Square in Athens, Greece, July 3, 2015. Tsipras, elected in January on a promise to end six years of austerity, extolled a packed Syntagma square in central Athens to spurn the tough terms of an aid deal offered by international creditors to keep the country afloat. REUTERS/Yannis Behrakis TPX IMAGES OF THE DAY